Bump to next development cycle

Signed-off-by: Curtis Rueden <ctrueden@wisc.edu>

Author: ctrueden

pom.xml

@@ -10,7 +10,7 @@
 	</parent>
 
 	<artifactId>scijava-maven-plugin</artifactId>
-	<version>2.2.0-SNAPSHOT</version>
+	<version>2.2.1-SNAPSHOT</version>
 	<packaging>maven-plugin</packaging>
 
 	<name>SciJava plugin for Maven</name>